.qqnav{
    height: 51px;
    line-height: 51px;
    border-top: 1px solid #f2f2f2;
    padding-left: 230px;
    margin-right: -50px;
    background-color: #f2f2f2;
}
.qqnav a{
    float: left;
    font-size: 15px;
    color: #000;
    cursor: pointer;
    margin-right: 47px;
    display:block;
    text-decoration: none;
}
.qqnav .active{
    color: #31c27c;
}